Mr. Donald Epperson serves as Chief Executive Officer at FreshBooks. He was the Founder and served as the President at HookMedia. He is a Co-Founder and serves as Board Member at Enervee. He serves as Chief Executive Officer at ISP Digital. He is a Co-Founder and serves as Executive Chairman at Enervee. He co-founded and served as Chairman at Simpli.fi. He is the Founder Partner of Digital Trek - a different kind of venture firm. Previously, he was the Global Chief Executive Officer at Havas Digital, the digital media arm of Havas. As Chief Executive Officer of Havas Digital, Don operated media agencies (e.g. Media Contacts), creative agencies (e.g. Archibald, Ingall & Stretton), a technology company (i.e. Artemis), an outsourcing company (i.e. Ecselis) and founded one of the industry's first trading desks (i.e. Adnetik). Prior in addition to Integral Ad Science, he sits on the Board of buildOn. He helped co-found buildOn in 1993. He received his BA in Economics from Rutgers University and his MBA from the University of Virginia's Darden Graduate School of Business Administration. He also served as a Board member and Executive Chairman at Integral Ad Science. He serves as Board Member at FreshBooks.